Process for obtaining carbon-black from peat.



Patented. Ma1123, 1909.

y J. E. SMITH. PROGESS FOR OBTAINING CARBON BLACK FROM PRAT, APPLICATION FILED DEO.8,1906. ,049.

WITns 55s @W Invenur nl Je 551551111 E5 0/ --rAMEs E. SMITH, 'or CLINTON* -CoMPA iowa; AssIGNoR 'ro NATIONAL PEArPRoDUcTs a CHEMICAL yaje onroiwrion or soU'rH DAKOTA.

Vr` `Roc:Ess non ionmnmme :CARBON-BLAGK F'Roii FEAT. i

Specication ot Letters Patent.

4Patented March 23, 1909. I

Application filed December 8, 1906. Serial No. 846,867.

, To all whom 'it 'may concern:

Be it known. that I, JAMES E'. SMirrr, cit/if,

' zen of the United States, residing at Clinton,

' .smo e from peat.

in the county of Clinton and' Stateoi' Iowa, have invented al certain nevaand useful lmproveme'nt in Processes/.for Obtaining Caron-Black from Peatfo'f which 'the following is a full, clear, coneisefand exact description, reference being, 'had' to the accompanying drawings, forming la part of thisv specificatlon.

My invention relates to an' improved process for obtaining carbon black from peat.

The ordinary vf ormrof carbon black is the so called lamp black-Which is Carried with the smoke from burning materialand vsuch lam `black can also be obtained from the I This carbon black however, retains oily characteristics, and does not readily mix with water. Carbon blacks can also be obtained byvthenatural drying of peatand then heating thereof in a retort, but the black which is obtainedin this manner is also oi' an oily naturey and will not readily mix with water. .I find that by drying and treating peat with steam under pressure and then roasting it, the oily matter is entirely removed and the resulting carbon black readily with water.

Onfthefaccom anying drawing, I have 'shown "a"'ii.gurel w ich shows diagrammatic allyv one manner in which the peat can be subjected to, .the l steam drying treatment. Peat 1s -takenl` 1n its raw wet state and placed in a suitablegreceptaele such as the wlre receptaclel i,which is conveniently mounted on a truek .Which can travel on rails 3;`into a drymglc yamber Lwhich-gaan be sealed. The

' contour of the wire basket l is preferabl like that of the chamber 4 so that there Wi l be a uniform layer of-steam around the'basket, and the basket being of wire and open .at all sides, the steam will be brought into direct Contact vwith ,the peat. densed steam flows oil' through the outlet 6 The conhich can be controlled by a lsuitable automatic trap 7. The steam is of suitable pressure, and the temperature Ishould be kept below the temperature of super heat so that the bituminous matter contained in the eat will not be liberated or chemically efected. Good results can be obtained by having the steam a trifle below the temperature of super heat and at a pressure of about 125 pounds per square inch, the steam-treat-- ment being-applied for about ten hours.

-This steam treatment breaks upvthe cellular residue being-t en vcarbon black which will .readily take to and mix with Water. If the carbon black is in the form of lum s or particles, it can -be easily pulverized y passage through a fine mesh screen or other pulverizing machinery.

' Having thusdescribed my improved rocess for obtaining from peat carbon )lack which will readily take and mix with Water, I desire to secure the following claims by Letters Patent.

1. The'p'rocess ofobtaining from peat a carbon black which will readily mix with Water which consists in first drying the .peat by bringing steam under pressure in direct contact therewith, and then roasting or heat ing the dry peat in a closed furnace or retort to drive therefrom substances. y

2.,Th'e process of obtaining `from peat 1ay gases and other foreign carbon black which will readily mix with direct action 'of steam under pressure', then heatingthe driedpeat inl an air ti ht furnace,

or retort to drive the gasesA and ot er foreign substances'the'refrom, and then pulverizing the residue by passing it through a tine mesh screen. -4 A y .In witnesstwhere'of,{ l hereunto subscribe my name this 5th day ofDecember A. D 1906.

Witnesses I CHARLES' J. SCHMIDT, GEORGE E. HI'enAM.'A

JAMESY E. sin'ri,l y 

